A192571 a(n) = sum(floor(sqrt(Bell(k))),k=0..n).
1, 2, 3, 5, 8, 15, 29, 58, 122, 267, 607, 1430, 3482, 8739, 22555, 59743, 162115, 449977, 1275856, 3690963, 10882913, 32674420, 99806496, 309930282, 977731801, 3131470488, 10176415237, 33537002728, 112026106459
Offset: 0
Keywords
Programs
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Mathematica
Table[Sum[Floor[Sqrt[BellB[k]]],{k,0,n}],{n,0,100}] Accumulate[Floor[Sqrt[BellB[Range[0,30]]]]] (* Harvey P. Dale, May 03 2024 *) -
Maxima
makelist(sum(floor(sqrt(belln(k))),k,0,n),n,0,28);